Where does “ciumkać” come from?

ciumkać (Polish) comes from Proto-Vietic -kac, from Proto-Slavic -kati, from Proto-Slavic bьlkъ!.

Ancestry of “ciumkać”, step by step

StepLanguageWordMeaning
1Proto-Vietic-kac—
2Proto-Slavic-katiCreates onomatopoeic verbs denoting an action of...
3Proto-Slavicbьlkъ!—
Every word from Proto-Slavic bьlkъ! →Every word from Proto-Vietic -kac →Every word from Proto-Slavic -kati →